Now your cell phone can tell you the best day to have sex if you're trying to get pregnant.

EggAlert is a text messaging service that will notify you when the optimum fertility day is approaching, so that you don't miss out on the perfect time for conception. The new service from PDAHealthWare, Inc., calculates a woman's next ovulation time, and sends a text message to their cell phone on their day of ovulation, fertility period, and when to expect their next menstrual period.

EggAlert is available by subscription at EggAlert.com